package com.huangliusong.lengthoflongestsubstring;

/**
 * @author huangliusong
 * @since 2019/2/21
 * {@link }
 */
public class Test5 {


    public static void main(String[] args) {
        String s="1";
        changeStr(s);
        System.out.println(s);

    }
    public static void changeStr(String s){
        s="2";
    }
}
